panic: sbflush_locked on 5.4-p5/i386
rwatson at FreeBSD.org
Mon Aug 8 16:27:31 GMT 2005
On Mon, 8 Aug 2005, Rong-En Fan wrote:
> After upgrading to 5-STABLE (about Aug 6), it works very good. With
> mpsafenet=1, it can work more than one day without panic. For 5.4-p5, it
> will panic at most half day or so. This bug seems fixed after 5.4 is
> released. I'll keep watching this machine. Will let you know if it still
> have similar panics ;-)
If you can confirm that the problem really is fixed in -STABLE, there are
two sets of changes that may be relevant:
- There are a number of SACK-related bug fixes in RELENG_5 that are not in
the RELENG_5_4 branch.
- There are a number of TCP/inpcb-related locking fixes (one in particular
for IPv6) that are in RELENG_5 but not RELENG_5_4.
We can then try and figure out which change it is that's helping, and get
that merged to RELENG_5_4 as an errata item. If you have IPv6 traffic,
there are some fixes I made a month or two ago that might be particularly
relevant during connection tear-down.
Robert N M Watson
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